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| author | Alexander Graf <agraf@suse.de> | 2016-08-19 01:23:22 +0200 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-10-18 15:58:50 +0800 |
| commit | 2b445e4d31940d512b3257f7398b794be710b8a9 (patch) | |
| tree | d905011fee8bf0e83e6939c6450cae6461295ff8 /include/tables_csum.h | |
| parent | d5a815327d2c257fbba108ff46974b1c1d12fd2a (diff) | |
| download | u-boot-2b445e4d31940d512b3257f7398b794be710b8a9.tar.gz u-boot-2b445e4d31940d512b3257f7398b794be710b8a9.tar.bz2 u-boot-2b445e4d31940d512b3257f7398b794be710b8a9.zip | |
x86: Move table csum into separate header
We need the checksum function without all the other table functionality
soon, so let's split it out into its own header file.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/tables_csum.h')
| -rw-r--r-- | include/tables_csum.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/tables_csum.h b/include/tables_csum.h new file mode 100644 index 0000000000..27d147b164 --- /dev/null +++ b/include/tables_csum.h @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _TABLES_CSUM_H_ +#define _TABLES_CSUM_H_ + +static inline u8 table_compute_checksum(void *v, int len) +{ + u8 *bytes = v; + u8 checksum = 0; + int i; + + for (i = 0; i < len; i++) + checksum -= bytes[i]; + + return checksum; +} + +#endif |